UK Buyer's Guide

Where to Buy L-Carnitine in the UK

L-Carnitine is a research compound central to the mitochondrial carnitine shuttle and fatty-acid transport studies. UK researchers sourcing L-Carnitine should look for verifiable third-party COA data and UK cold-chain handling. This guide explains what L-Carnitine is, what to check when sourcing it in the UK, and where you can buy independently lab-tested L-Carnitine from UK Peptide Lab.

What is L-Carnitine?

L-Carnitine is a quaternary ammonium compound derived from the amino acids lysine and methionine, biosynthesised in the liver and kidneys. Research has investigated its role in fatty-acid transport across the inner mitochondrial membrane via the carnitine shuttle, as well as effects on mitochondrial bioenergetics and oxidative metabolism. L-Carnitine is supplied as a lyophilised powder for in-vitro laboratory research only, not for human or veterinary use.

Published research on L-Carnitine is indexed on PubMed.

Intended Use: Strictly for in-vitro laboratory research. Not for use in humans or animals. This product has not been evaluated by the MHRA or FDA.

Why buy L-Carnitine from UK Peptide Lab

98%+ HPLC purity

Every batch verified by accredited third-party labs.

COA on every batch

Full Certificate of Analysis published per product page.

UK cold-chain storage

Stored at -20°C from arrival through dispatch.

Same-day UK dispatch

Royal Mail Tracked 24, free UK delivery over £45.

Available L-Carnitine options

Frequently asked questions about buying L-Carnitine in the UK

Other UK buying guides